Walter Amaral serves as Executive at SIRF TECHNOLOGY HOLDINGS INC, where they oversee executive responsibilities. Since joining the company, Walter Amaral has executed 127 insider transactions totaling $9.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Feb 6, 2006 involved exercising options for 1,555 shares valued at $6.2K.
Walter Amaral currently holds 437,186 shares of SIRF TECHNOLOGY HOLDINGS INC (SIRF), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Walter Amaral has been a net seller of SIRF stock. They have purchased $0 and sold $9.0M worth of shares.
Walter Amaral's most recent insider trade was on Feb 6, 2006, when they sold 1,555 shares at $4.00 per share.
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| $37.21 |
| Discretionary |
| Feb 6, 2006 | SIRF | $43.1K | Option Exercise | 3,445 | $12.51 | Discretionary |
| Feb 6, 2006 | SIRF | $128.2K | Sale | 3,445 | $37.21 | Discretionary |
| Feb 6, 2006 | SIRF | $25.0K | Option Exercise | 2,000 | $12.51 | Discretionary |
| Feb 6, 2006 | SIRF | $74.5K | Sale | 2,000 | $37.25 | Discretionary |
| Feb 6, 2006 | SIRF | $12.0K | Option Exercise | 3,000 | $4.00 | Discretionary |
| Feb 6, 2006 | SIRF | $111.8K | Sale | 3,000 | $37.25 | Discretionary |
| Feb 6, 2006 | SIRF | $2.0K | Option Exercise | 500 | $4.00 | Discretionary |
| Feb 6, 2006 | SIRF | $18.2K | Sale | 500 | $36.45 | Discretionary |
| Feb 6, 2006 | SIRF | $8.0K | Option Exercise | 2,000 | $4.00 | Discretionary |
| Feb 6, 2006 | SIRF | $73.0K | Sale | 2,000 | $36.50 | Discretionary |
| Feb 6, 2006 | SIRF | $2.0K | Option Exercise | 500 | $4.00 | Discretionary |
| Feb 6, 2006 | SIRF | $18.3K | Sale | 500 | $36.52 | Discretionary |
| Feb 6, 2006 | SIRF | $18.0K | Option Exercise | 4,500 | $4.00 | Discretionary |
| Feb 6, 2006 | SIRF | $164.7K | Sale | 4,500 | $36.60 | Discretionary |
| Feb 6, 2006 | SIRF | $10.0K | Option Exercise | 2,500 | $4.00 | Discretionary |
| Feb 6, 2006 | SIRF | $91.8K | Sale | 2,500 | $36.70 | Discretionary |
| Feb 6, 2006 | SIRF | $4.0K | Option Exercise | 1,000 | $4.00 | Discretionary |
| Feb 6, 2006 | SIRF | $36.8K | Sale | 1,000 | $36.75 | Discretionary |
| Feb 6, 2006 | SIRF | $12.0K | Option Exercise | 3,000 | $4.00 | Discretionary |
| Feb 6, 2006 | SIRF | $110.8K | Sale | 3,000 | $36.92 | Discretionary |
| Feb 6, 2006 | SIRF | $8.0K | Option Exercise | 2,000 | $4.00 | Discretionary |
| Feb 6, 2006 | SIRF | $73.9K | Sale | 2,000 | $36.95 | Discretionary |
| Feb 6, 2006 | SIRF | $14.0K | Option Exercise | 3,500 | $4.00 | Discretionary |
| Feb 6, 2006 | SIRF | $10.0K | Option Exercise | 2,500 | $4.00 | Discretionary |
| Feb 6, 2006 | SIRF | $129.5K | Sale | 3,500 | $37.00 | Discretionary |